net: Pass kern from net_proto_family.create to sk_alloc

In preparation for changing how struct net is refcounted
on kernel sockets pass the knowledge that we are creating
a kernel socket from sock_create_kern through to sk_alloc.

Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/include/net/sock.h b/include/net/sock.h
index 3a4898e..d8dcf91 100644
--- a/include/net/sock.h
+++ b/include/net/sock.h
@@ -1514,7 +1514,7 @@
 
 
 struct sock *sk_alloc(struct net *net, int family, gfp_t priority,
-		      struct proto *prot);
+		      struct proto *prot, int kern);
 void sk_free(struct sock *sk);
 void sk_release_kernel(struct sock *sk);
 struct sock *sk_clone_lock(const struct sock *sk, const gfp_t priority);